SOLUTION: a new business on the first day he open his business made $520.00 on the fifth day he is $840.00 if his business countin at this same rate what will bring in on the tenth day

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Question 915460: a new business on the first day he open his business made $520.00 on the fifth day he is $840.00 if his business countin at this same rate what will bring in on the tenth day
Answer by ewatrrr(24785)   (Show Source): You can put this solution on YOUR website!
a5 = 520 + 4d = 840, d = (840-520)/4 = $80
d = $80
a10 = 520 + 9($80) = $1240

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